Apparatus for cleaning erasers.



l. A. JONES.

APPARATUS FOR CLEANING ERASERS. APPucATloN FILED ocr.\o,19|1.

1,279,350; meme@ spt. 17,1918.

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1. A. JONESl` l APPARATUS FOR CLEANING EHASERS.

APPLICATION FILED OCT- I0 IBI?.

Patented sept. 17,1918.

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` /NVE/vron' James Jones ATTORNEYS .TABLIIEISy ARTHUR JONES, 0F ANDERSON, INDIANA.

APPARATS FoRcLEANING nnAsnRs;

Specica'tionof Letters Patent.

'Patented sept. it, 1918.-

Appncation niet october 1o, 1917".l seriai no. 195,833.

To @ZZ whom 'it may concern.'

lBc. it known' that l, JAMES A. JONES, a citizen of the United States, and a resident of Anderson, in the county of Madison and State of Indiana, haveL invented a new and improved lixpparatus for Cleaning Erasers, of which the following. is a full, clear, and exact description. k 'Y My invention relates to an apparatus whereby to clean blackboard erasers.

GeneralA objectsV of they invention are to provide an apparatus for the indicated purpose equipped with novel feed means to engage the eraser as it is entered in the apparatusg'to4 provide an effective means to successively beat and brush the eraser as it is advanced by the feed means; and to provide for exhausting the dust.

A more specific object of the invention is to provide the feed means, cleaning means, and fanassembled in compact form and ar ranged to Vbe driven from a motor.

Reference is to be had to the accompanying drawings forming a part of this specification in which similar reference characters indicate corresponding parts in all theV views, it being understood that the drawingsk are merely illustrativeof one example of the invention.

Figure 1 is a plan view with parts in section on the line 1 1, Fig. 2, and others broken away; e

Fig. 2 is a longitudinal vvertical section on the line v2 2, Fig. 1; y y

'Fig. 3 isa longitudinal vertical section on the line 3 3, Fig` 1.

1n carrying out my invention a suitable base 10 is provided, sustaining suitable bearings 13v in which the shaft 11 of a suitable electric or. other motorV 12 is mounted to turn.A The shaft 11 has a crank arm 14, to thewrist pin 15 of which a'` connecting rod 16 is pivoted, the opposite end of vsaid connecting rod being pivotedto a rocker armA To feed:A the eraser, upper and lower rollers 27, 28 are provided, the roller 28 being'a positive feedl roller which Yis actuated by the rocking of the shaft 1'8 for the purpose. In the illustrated examiple said Vroller 28 is mounted on the shaft 29 on which' is a ratchet wheel 30 engageable by a pawl 31 pivoted as at 32' to a rigid arm 33 on the shaft? 18.- The upper side of 'the' feed roller 28A extends through a vertical opening 34 in l the bottom 25 of the tunnel. The upper `roller27 is secured in the Vforked free end of a yibratable' arm 35 secured to a shaft 36, said arm being pressed upon by a spring 37.

71th the'described construction the motor 12 serves to rock the shaft 18 to thus vistep movement, gradually advancing the eraser over the beater, the yielding-pressure of the roller 27 Ae'ectively maintaining aV proper contactof the'eraser with the feed roller.

against the` eraser is produced by pressure on a roller 38 in advance of a roller 37,V said roller 38 being mounted on a swingable'arnr Y 39 secured atl onev end to a shaft 40, the arm being under the pressure of a suitable spring 41, the roller 88being positioned vdirectly above the Voffset end 23 of the beater. The numeral 42 indicates a housing or casing on the base 10 for closing the operative parts.

In advance of the beater 20 I provide `a brush 44 to remove any dust" particles adhering to the eraser. Said brush is mounted on a lshaft 43'in the top of the casing 42 and extends at its upper side slightly through an Opening 45 in the top 25 of the tunnel 26. The brush is `driven from themotor 12 inr any-suitable manner, there being a cross belt 46.' 'In orderV to exhaust the dust removed from the eraser by the beater 20 and brush 44, a fan 47 is provided, driven by a suitable means from the motor 12 and by a belt 48. An outlet tube 50 leads vfrom the fan casing 49 and may deliver to any suitable dust collector or receptacle, or may have connected therewith a hose 51 to lead to any distant point.

- V -Resistance to the action of the beater 20.

It will be notedwith regard to the beater 2O that to produce the offset end 28, the beater is bent at such an angle as to insure clearance for the vibration of the beater below the bottom 25 of the tunnel while the projection of the offset end through the opening 24k Will be insured for effective enl gagement of the said oset end with the eraser A and parallel With the latter.

I Wish to state in conclusion that although the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the mechanical` details herein illustrated, since manifestly the same can be considerably varied Without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention, I cla-im as new, and desire to secure by Letters Patent:

l. An apparatus for cleaning erasers, including a casing, a tunnel on said casing adapted to afford passage of an eraser to be cleaned, yielding pressure rollers one in advance of the other in said tunnel beneath which the eraser may be passed, a feed roller in said casing at the bottom of the tunnel, said bottom having an opening beneath the one pressure roller through which the top of the feed roller projects, a vibratable beater arm having an offset free end, the bottom of the tunnel having a second opening located beneath the second pressure roller, and accommodating the offset end of the beater arm, means to actuate the said feed roller and to vibrate the beater arm, a rotary brush in advance of the beater arm, the bottom of the tunnel having a third opening through Which the top of the brush extends to engage the eraser after action by the beater arm, and means to cause suction in said casing and induce an air current from the tunnel through the said openings in the bottom of the tunnel to the said casing to collect the dust arising in the tunnel and at said openings.

2. An apparatus for cleaning erasers, including a tunnel adapted to afford passage of an eraser to be cleaned, yielding pressure devices one in advance of the other in the tunnel at the top, beneath Which the eraser may successively pass, a feed roller in the casing at the bottom of the tunnel coacting with the first pressure means, a VVibratable beater arm beneath the tunnel, the outer endof said arm being upwardly offset and extending through the bottom of the tunnel beneath the second pressure means, and means to actuate said feed roller'and vibratable arm.

3. An apparatus for cleaning erasers including a casing, a' tunnel on said casing adapted to afford passage of an eraser to be cleaned, a vibratable arm beneath the bottom of the tunnel, said bottom having an opening therein and the free end of the beater arm being offset and extending through said opening, and means to cause a suction from the tunnel through said opening to the casing to collect the dust produced from the action of the beater arm on the eraser. l

t. In an apparatus of the class described, a casing, a tunnel on top of the casing adapted to afford passage for an eraser to be cleaned, a rock shaft in the casing beneath the bottom of the tunnel, a' beater arm on said shaft, said beater arm having an upwardly oset free end and the bottom of the tunnel having an opening through which said offset end extends, means in the tunnel at the top to yieldingly press the eraser against the bottom of the tunnel, means to feed the eraser Vthrough'the tunnel past the 'beater arm, a fan adapted to exhaust the air from the tunnelthrough the said opening, and means to drive said fan and rock the said shaft. Y

5. An apparatus for cleaning erasers, including a casing, a. tunnel on said casing adapted to afford passage for an eraser to be cleaned, a feed roller in the casing at the bottom of the tunnel, the casinghaving an opening through which the said feed roller extends to engage the eraser, a rockk shaft in the casing adjacent Vto theV feed roller, a beater arm on the rock shaft, the bottom of the tunnel having an opening through Which the beater arm projects to engage the eraser, a pavvl pivoted on the rock shaft, a ratchet Wheel on the feed roller engaged by said paWl, and means toV actuate said rock shaft.

JAMES ARTHUR JONES.

copies of this patent may be obtained for five cents each, by addressingi the Commissioner of Patents,

Washington, D. G. 

